Pihu and Rani start a business together by investing Rs. 9000 and Rs. 6300 respectively. After a certain period, Pihu withdrew from the business completely. If at the end of 2 yrs the total profit earned was Rs. 13,050 and Pihu's share was Rs. 6,750, after how many months did Pihu withdraw from business?

Jar A contains 'x' ml of pure milk only. A 27 ml mixture of milk and water in the respective ratio of 4 : 5, is added to jar A. The new mixture thus formed in jar A contains 70% milk, what is the value of x?

The speed of a boat in still water is 500% more than the speed of the current. What is the respective ratio between the speed of the boat downstream and speed of the boat upstream?

Study the table carefully and answer the given questions.

The number of employees in organisation B and C decreased by 5% and 10% respectively from 2007 to 2008. What was the total number of employees in organisation B and C together in 2008?

Study the table carefully and answer the given questions.

What is the difference between total number of employees in organisation A in 2003 and 2004 together and that in organisation D in the same years together?

Study the table carefully and answer the given questions.

What is the respective ratio between total number of employees in organisations B and C together in 2004 and total number of employees in organisations D and E together in 2007?